Description
I have different hydras using exactly same subset of heads. For example, for moving the point, both the vi-style navigation hydra and the rectangle operation hydra define h i j k heads to call same commands, respectively. Would it be possible to share these heads between the hydras?
An option is to define the common heads in a hydra and call it in bodies of vi-navigation and rect-ops. But that would require an extra pair of keys to enter and exit the sub-hydra.
I am thinking something like:
;; It could be implemented as a different function/macro if that would make more sense.
(defhydra common-heads ()
""
("h" backward-char)
...
("k" previous-line))
(defhydra vi-navigation ()
""
(hydra-import common-heads :hint t) ;; shown in hint
("a" beginning-of-line)
;; other heads
...)
(defhydra rect-operations ()
""
(hydra-import common-heads :hint nil) ;; hidden
;; other heads
...)The function/macro hydra-import (I am making up the name here) would somehow make the heads h j k l available directly in the calling hydras. The property :hint tells whether these heads should show up in the calling hydras. Having the :exit and :foreign-keys properties would be useful, too.
I have to admit that this is only a nice-to-have minor feature. It might not even get much use. I am just tossing some ideas.